The following rating structure was devised to:
For each of the following construction elements, credit(s) are achieved when the materials specified contain a minimum percentage (by volume) of post consumer reused or recycled materials.
Rating = Credits Achieved x Weighting Factor
To see explanatory notes and examples, click on the element.
Click here for a printer friendly format of the following table.
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Construction elements (click for criteria) |
Minimum percentage | Credits available | Credits achieved | Weighting factor | Rating |
| Foundations / hardcore | 25% | 1 | 3 | ||
| 50% | 2 | 3 | |||
| 75% | 3 | 3 | |||
| Ground slab | 25% | 1 | 3 | ||
| 50% | 2 | 3 | |||
| 75% | 3 | 3 | |||
| Ground insulation | 25% | 1 | 3 | ||
| 50% | 2 | 3 | |||
| 75% | 3 | 3 | |||
| Upper floor(s) slabs | 25% | 1 | 3 | ||
| 50% | 2 | 3 | |||
| 75% | 3 | 3 | |||
| External walls - structure | 25% | 1 | 3 | ||
| (no insulation) | 50% | 2 | 3 | ||
| 75% | 3 | 3 | |||
| External walls - insulation | 25% | 1 | 3 | ||
| 50% | 2 | 3 | |||
| 75% | 3 | 3 | |||
| Internal walls / partitions | 25% | 1 | 2 | ||
| 50% | 2 | 2 | |||
| 75% | 3 | 2 | |||
| Roof structure | 25% | 1 | 3 | ||
| 50% | 2 | 3 | |||
| 75% | 3 | 3 | |||
| Roof cover | 25% | 1 | 3 | ||
| 50% | 2 | 3 | |||
| 75% | 3 | 3 | |||
| Roof insulation | 25% | 1 | 3 | ||
| 50% | 2 | 3 | |||
| 75% | 3 | 3 | |||
| Window frames | 25% | 1 | 3 | ||
| 50% | 2 | 3 | |||
| 75% | 3 | 3 | |||
| Doors | 25% | 1 | 2 | ||
| 50% | 2 | 2 | |||
| 75% | 3 | 2 | |||
| Skirting boards | 25% | 1 | 1 | ||
| 50% | 2 | 1 | |||
| 75% | 3 | 1 | |||
| Floor cover | 25% | 1 | 2 | ||
| 50% | 2 | 2 | |||
| 75% | 3 | 2 | |||
| Ceilings | 25% | 1 | 2 | ||
| 50% | 2 | 2 | |||
| 75% | 3 | 2 | |||
| Gutters and down pipes | 25% | 1 | 1 | ||
| 50% | 2 | 1 | |||
| 75% | 3 | 1 | |||
| Landscaping | 25% | 1 | 2 | ||
| (boundary protection) | 50% | 2 | 2 | ||
| 75% | 3 | 2 | |||
| Landscaping | 25% | 1 | 3 | ||
| (external surfacing) | 50% | 2 | 3 | ||
| 75% | 3 | 3 | |||
| Refurbishment | 25% | 1 | 3 | ||
| 50% | 2 | 3 | |||
| 75% | 3 | 3 | |||
| Earth works / excavation | 25% | 1 | 2 | ||
| 50% | 2 | 2 | |||
| 75% | 3 | 2 |
Rating scale
Excellent for schemes scoring strictly more than 143 credits.
Very Good for schemes scoring strictly more than 108 credits.
Good for schemes scoring strictly more than 75 credits.
Pass for schemes scoring more than 0 credits.
| 0 | 75 | 150 | |||||||||
| Pass | Good | Very Good | Exc. | ||||||||
| 108 | 143 | ||||||||||
| Foundations / hardcore | ![]() |
|
For example, one credit is achieved where 25% (by volume) of the materials used to make up the foundations are post consumer reused or recycled materials.
Typical examples include crushed concrete, crushed bricks and Pulverised Fuel Ash (PFA). |
|
| Ground slab | ![]() |
|
For example, one credit is achieved where 25% (by volume) of the materials used to make up the ground slab are post consumer reused or recycled materials.
Typical examples include concrete with crushed concrete aggregate and reused timber (joists, boards, etc.) |
|
| Ground insulation | ![]() |
|
For example, one credit is achieved where 25% (by volume) of the materials used to make up the ground insulation are post consumer reused or recycled materials.
Typical examples include cellulose, sheep wool insulation. |
|
| Upper floor(s) slabs | ![]() |
|
For example, one credit is achieved where 25% (by volume) of the materials used to make up the upper floor(s) slabs are post consumer reused or recycled materials.
Typical examples include concrete with crushed concrete aggregate and reused timber (joists, boards, etc.) |
|
| External walls - structure (with no insulation) | ![]() |
|
For example, one credit is achieved where 25% (by volume) of the materials used to make up the external walls structure are post consumer reused or recycled materials.
Typical examples include reused bricks and blocks, reused timber frame and blocks made of post consumer waste. |
|
| External walls - insulation | ![]() |
|
For example, one credit is achieved where 25% (by volume) of the materials used to make up the external walls insulation are post consumer reused or recycled materials.
Typical examples include cellulose, sheep wool insulation. |
|
| Internal walls / partitions | ![]() |
|
For example, one credit is achieved where 25% (by volume) of the materials used to make up the internal walls are post consumer reused or recycled materials.
Typical examples include reused concrete, blocks and timber. |
|
| Roof structure | ![]() |
|
For example, one credit is achieved where 25% (by volume) of the materials used to make up the roof structure are post consumer reused or recycled materials.
Typical examples include reused timber and concrete. |
|
| Roof cover | ![]() |
|
For example, one credit is achieved where 25% (by volume) of the materials used to make up the roof cover are post consumer reused or recycled materials.
Typical examples include reused slates and tiles. |
|
| Roof insulation | ![]() |
|
For example, one credit is achieved where 25% (by volume) of the materials used to make up the roof insulation are post consumer reused or recycled materials.
Typical examples include cellulose, sheep wool insulation. |
|
| Window frames | ![]() |
|
For example, one credit is achieved where 25% (by volume) of the materials used to make up the window frames are post consumer reused or recycled materials.
Typical examples include timber frames and recycled PVC frames. |
|
| Doors | ![]() |
|
For example, one credit is achieved where 25% (by volume) of the materials used to make up the doors are post consumer reused or recycled materials.
Typical examples include reused doors. |
|
| Skirting boards | ![]() |
|
For example, one credit is achieved where 25% (by volume) of the materials used to make up the skirting boards are post consumer reused or recycled materials.
Typical examples include recycled PVC. |
|
| Floor cover | ![]() |
|
For example, one credit is achieved where 25% (by volume) of the materials used to make up the floor cover are post consumer reused or recycled materials.
Typical examples include covering made from recycled tyres. |
|
| Ceilings | ![]() |
|
For example, one credit is achieved where 25% (by volume) of the materials used to make up the ceiling are post consumer reused or recycled materials.
Typical examples include plasterboard. |
|
| Gutters and down pipes | ![]() |
|
For example, one credit is achieved where 25% (by volume) of the materials used to make up gutters and down pipes are post consumer reused or recycled materials.
Typical examples include recycled PVC. |
|
| Landscaping (boundaries protection) | ![]() |
|
For example, one credit is achieved where 25% (by volume) of the materials used to make up the boundaries protection are post consumer reused or recycled materials.
Typical examples include reused timber posts. |
|
| Landscaping (external surfacing) | ![]() |
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For example, one credit is achieved where 25% (by volume) of the materials used to make up the external surfacing are post consumer reused or recycled materials.
Typical examples include recycled tarmac. |
|
| Refurbishment (where part of the load bearing structure is kept) | ![]() |
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For example, one credit is achieved where 25% (by volume) of the existing structure is kept and reused. |
|
| Earth works / excavation | ![]() |
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For example, one credit is achieved where 25% (by volume) of the materials excavated from the site are reused on the site. |
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